JPS54143263A - Electronic watch with alarm - Google Patents

Electronic watch with alarm

Info

Publication number
JPS54143263A
JPS54143263A JP5100278A JP5100278A JPS54143263A JP S54143263 A JPS54143263 A JP S54143263A JP 5100278 A JP5100278 A JP 5100278A JP 5100278 A JP5100278 A JP 5100278A JP S54143263 A JPS54143263 A JP S54143263A
Authority
JP
Japan
Prior art keywords
sounding
buzzer
phase
output terminals
alarm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP5100278A
Other languages
Japanese (ja)
Other versions
JPS613438B2 (en
Inventor
Yasuhiko Nishikubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP5100278A priority Critical patent/JPS54143263A/en
Publication of JPS54143263A publication Critical patent/JPS54143263A/en
Publication of JPS613438B2 publication Critical patent/JPS613438B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

PURPOSE:To drive a buzzer without providing any external mounting parts other than CMOS.IC by providing two terminals for output terminals and connecting the buzzer between said two terminals so that the phases between the output terminals are mutually anti-phase at the sounding and in-phase at the dwell of sounding. CONSTITUTION:Outputs f1, f2, f3 and alarm sounding control input CG are inputted from a frequency dividing part 2 to an alarm shaping circuit 61 via level shift 3 and high voltage operation frequency dividing circuit 4 and the signal waveforms phi113, phi114 of the nodal points 113, 114 thereof are mutually anti-phase at the sounding and in-phase at the dwell of sounding. Hence, the signals appear at output terminals 110, 111 through pre-driving inverters 117, 118 and driving inverters 115, 116 after the nodal points 113, 114, thereby driving a buzzer 9. The dutputs of zero are outputted between the output terminals 110, 111 at the dwell of sounding and the outputs twice the supply voltage at the sounding, whereby the buzzer 9 is directly driven.
JP5100278A 1978-04-28 1978-04-28 Electronic watch with alarm Granted JPS54143263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5100278A JPS54143263A (en) 1978-04-28 1978-04-28 Electronic watch with alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5100278A JPS54143263A (en) 1978-04-28 1978-04-28 Electronic watch with alarm

Publications (2)

Publication Number Publication Date
JPS54143263A true JPS54143263A (en) 1979-11-08
JPS613438B2 JPS613438B2 (en) 1986-02-01

Family

ID=12874559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5100278A Granted JPS54143263A (en) 1978-04-28 1978-04-28 Electronic watch with alarm

Country Status (1)

Country Link
JP (1) JPS54143263A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60238854A (en) * 1984-05-11 1985-11-27 Fuji Xerox Co Ltd Alarm buzzer driving circuit of electronic copying machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60238854A (en) * 1984-05-11 1985-11-27 Fuji Xerox Co Ltd Alarm buzzer driving circuit of electronic copying machine

Also Published As

Publication number Publication date
JPS613438B2 (en) 1986-02-01

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